Home / 18,290.32-25,240.74-9,906.82

Finding the Fourth Proportional to 18,290.32, 25,240.74 and 9,906.82

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Solution

The fourth proportional to 18,290.32, 25,240.74 and 9,906.82 is: 13,671.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.32 : 25,240.74 = 9,906.82 : x
  2. Step 2: Convert to fraction form
    18,290.32/25,240.74 = 9,906.82/x
  3. Step 3: Cross multiply
    18,290.32x = 25,240.74 × 9,906.82
  4. Step 4: Simplify right side
    18,290.32x = 250,055,467.85
  5. Step 5: Solve for x
    x = 250,055,467.85/18,290.32
  6. Step 6: Final answer
    x = 13,671.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.